EP3876381B1 - Lade- und entladesteuerungsverfahren und vorrichtung für endgeräte - Google Patents

Lade- und entladesteuerungsverfahren und vorrichtung für endgeräte Download PDF

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Publication number
EP3876381B1
EP3876381B1 EP19878074.4A EP19878074A EP3876381B1 EP 3876381 B1 EP3876381 B1 EP 3876381B1 EP 19878074 A EP19878074 A EP 19878074A EP 3876381 B1 EP3876381 B1 EP 3876381B1
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EP
European Patent Office
Prior art keywords
battery
type
charging
terminal
batteries
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19878074.4A
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English (en)
French (fr)
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EP3876381A1 (de
EP3876381A4 (de
Inventor
Mingming DOU
Baofeng Jia
Bo Zhang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
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Publication date
Priority claimed from CN201811280924.6A external-priority patent/CN111130154B/zh
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Publication of EP3876381A1 publication Critical patent/EP3876381A1/de
Publication of EP3876381A4 publication Critical patent/EP3876381A4/de
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00309—Overheat or overtemperature protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/443—Methods for charging or discharging in response to temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/446—Initial charging measures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/448—End of discharge regulating measures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/0071—Regulation of charging or discharging current or voltage with a programmable schedule
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/10—The network having a local or delimited stationary reach
    • H02J2310/20—The network being internal to a load
    • H02J2310/22—The load being a portable electronic device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to the field of communications, in particular to a charge and discharge control method and apparatus for a terminal, a non-transitory computer-readable storage medium and an electronic apparatus.
  • a terminal in addition to a single battery, two batteries or more batteries may be used to increase the endurance of the terminal, and using two batteries or more batteries gradually becomes a trend.
  • charging and discharging (where charging refers to charging the batteries in the terminal and discharging refers to supplying power using the batteries in the terminal) of a terminal with two batteries will be described as an example.
  • Each of the two batteries uses a separate charging chip, and the two batteries are charged or discharged simultaneously.
  • Patent Literature EP3319203A1 relates to an electrical storage system including an electrical storage unit that includes one or two or more storage batteries, a storage unit that stores historical information of the electrical storage unit, and a control unit.
  • the control unit acquires the historical information from the storage unit, and performs a control of changing a charging setting voltage value of the electrical storage unit to a low-charging voltage value lower than a typical-charging voltage value in a case where the charging setting voltage value of the electrical storage unit is set to the typical-charging voltage value and in a case where the historical information satisfies a voltage changing condition, and of returning the charging setting voltage value of the electrical storage unit to the typical-charging voltage value after the electrical storage unit performs charging and discharging with the low-charging voltage value.
  • Patent Literature ( EP3032695A1 ) relates to a battery control system connected to a battery, which controls charge/discharge at the battery, includes: a current detection unit that measures a current value by detecting a charge/discharge current flowing through the battery; a voltage detection unit that detects a voltage at the battery; a temperature detection unit that detects a temperature at the battery; a temperature history recording unit that records temperature history pertaining to the temperature detected by the temperature detection unit; and a charge/discharge restriction unit that restricts the charge/discharge current in a low-temperature state based upon the temperature history recorded by the temperature history recording unit.
  • Patent Literature US2016097820A1 relates to a battery system for a portable information handling system may modify charging parameters based on temperature exposure of a battery.
  • the battery When the battery is charged and exposed to a high temperature, the battery may be discharged to a lower voltage. After a cumulative period of exposure to a high temperature, a top-of-charge (TOC) voltage may be permanently reduced for the battery. Prior to charging at a high temperature, the TOC voltage may be reduced for a next charge cycle. Reducing the TOC voltage may minimize adverse effects for battery performance.
  • TOC top-of-charge
  • Patent Literature US2015048797A1 relates to a battery pack.
  • the battery pack includes a battery including at least one battery cell and a battery managing unit for controlling charging and discharging of the battery.
  • the battery managing unit includes a measuring unit measuring at least one parameter of the battery per sampling period and generating measurement data.
  • the battery managing unit also includes a control unit including a plurality of counters corresponding to a plurality of sections defined with respect to the parameter and configured to increment a counter corresponding to the section including the measurement data.
  • the battery managing unit also includes a storage unit storing counter values of the counters in a predetermined address per logging period.
  • Patent Literature ( WO2015155939A1 ) relates to a storage device includes a storage unit, and an evaluation value acquisition unit wherein the evaluation value acquisition unit is configured to acquire an evaluation value including at least a first evaluation value corresponding to the storage unit in a low-temperature region and a second evaluation value corresponding to the storage unit in a high-temperature region.
  • Embodiments of the present invention provide a charge and discharge control method and apparatus for a terminal, a non-transitory computer-readable storage medium and an electronic apparatus, to at least solve the problem in at least a certain extent, which exists in the existing technology that when a battery in a terminal is used for charging or discharging for a long time, the battery may swell and cause a safety accident.
  • An embodiment of the present invention provides a charge and discharge control method for a terminal.
  • the method may include: determining temperature parameters of at least one battery in the terminal, where the temperature parameters comprise at least one of a cumulative time TS for which the temperature of the at least one battery is greater than a first preset value, and a continuous time TN for which the temperature of the at least one battery is greater than a second preset value; and performing charge and discharge control on the at least one battery in the terminal according to the temperature parameters; and performing charge and discharge control on the at least one battery in the terminal according to the temperature parameters includes following operations, in response to determining that a respective one of the at least one battery has TS less than or equal to the first cumulative time threshold in the terminal, considering the respective one of the at least one battery as a battery of first type, and performing a charging or discharging operation using the battery of first type; where, performing a charging or discharging operation using the battery of first type includes, in response to determining that a respective battery of first type has TN less than or equal to
  • the apparatus may include: a determination module configured to determine temperature parameters of at least one battery in a terminal, where the temperature parameters comprise at least one of a cumulative time TS for which the temperature of the at least one battery is greater than a first preset value, and a continuous time TN for which the temperature of the at least one battery is greater than a second preset value; and a control module configured to perform charge and discharge control on the at least one battery in the terminal according to the temperature parameters; ; and the performance of charge and discharge control on the at least one battery in the terminal according to the temperature parameters includes following operations, in response to determining that a respective one of the at least one battery has TS less than or equal to the first cumulative time threshold in the terminal, considering the respective one of the at least one battery as a battery of first type, and performing a charging or discharging operation using the battery of first type; where, performing a charging or discharging operation using the battery of first type includes, in response to determining that a
  • FIG. 1 is a hardware block diagram of a mobile terminal to which a terminal charging/discharging control method is applied according to an embodiment of the present invention.
  • the mobile terminal includes one or more processors 102 (only one is shown in FIG. 1 ) (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data.
  • the mobile terminal also includes a transmission device 106 for a communication function and an input/output device 108.
  • the structure shown in FIG. 1 is merely schematic and does not limit the structure of the mobile terminal.
  • the mobile terminal 10 includes more or fewer components than those shown in FIG. 1 , or have a different configuration than those shown in FIG. 1 .
  • the memory 104 is configured to store a computer program, for example, a software program and a module of application software, such as a computer program corresponding to a charging and discharging control method of a terminal in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by executing the computer program stored in the memory 104, that is, to implement the above-described method.
  • Memory 104 may include high-speed random access memory, and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory.
  • the memory 104 may also include memory remotely disposed relative to the processor 102, which may be connected to the mobile terminal 10 over a network. Examples of the above networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the transmission device 106 is for receiving or transmitting data via a network.
  • the specific example of the network described above may include a wireless network provided by a communication provider of the mobile terminal 10.
  • the transmission device 106 includes a network adapter (Network Interface Controller, abbreviated as NIC) that can be connected to other network devices via a base station to communicate with the Internet.
  • the transmission device 106 may be a radio frequency (RF) module for communicating with the Internet in a wireless manner.
  • RF radio frequency
  • FIG. 2 is a flowchart of a charge and discharge control method for a terminal according to an example not being part of the present invention.
  • the flow includes following steps S202 and S204.
  • temperature parameters of one or more batteries in a terminal are determined, where the temperature parameters include at least one of a cumulative time TS for which the temperature of the battery is greater than a first preset value, and a continuous time TN for which the temperature of the battery is greater than a second preset value.
  • step S204 charge and discharge control is performed on the one or more batteries in the terminal according to the temperature parameters.
  • TS refers to a cumulative total time for which the battery has been in a high-temperature state from leaving the factory until now
  • TN refers to a continuous time for which the battery has been in a high-temperature state from leaving the factory until now.
  • the values of the first preset value and the second preset value may be the same or may be different.
  • the charging or discharging of the terminal is controlled according to the temperature parameters of the battery, that is to say, when using the terminal to charge and discharge, the temperature parameters of the battery are considered comprehensively, so that the battery is prevented from being frequently used for charging or discharging at high temperature, thus solving a problem in the existing technology that when the battery in the terminal is used for charging and discharging for a long time, the battery may swell and cause a safety accident. Therefore, the effects of improving battery safety, reducing swelling phenomena, and ensuring the use safety of the terminal are effectively achieved.
  • Fig. 3 is a first flowchart of a charge and discharge control method for a terminal according to an example not being part of the present invention.
  • the step S204 includes at least one of following steps S302 and S304: At step S302, when it is determined that there is no battery in the terminal with TS of the battery being less than or equal to a first cumulative time threshold, an indication that the batteries in the terminal need to be replaced is performed.
  • the battery with TS less than or equal to the first cumulative time threshold is considered as a battery of first type, and a charging or discharging operation is performed using the battery of first type.
  • the first cumulative time threshold is a threshold for warning against cumulative time of high temperature which is represented by TSH (if the threshold is exceeded, the battery is prone to swell.
  • the value of the threshold is fixed, that is, may be set when the battery leaves the factory, for example, may be set to 3 months, 4 months or the like.
  • the value of the threshold is adjustable, for example, may be adjusted manually, or may be adjusted automatically according to a preset adjustment condition).
  • the charging or discharging of the terminal is controlled in consideration of the TS value of the battery in the terminal only, that is to say, only according to the TS value of the battery.
  • the charging or discharging of the terminal is controlled in consideration of the TN value of the battery in the terminal in combined consideration of the TS value of the battery and other temperature parameters.
  • Fig. 4 is a second flowchart of a charge and discharge control method for a terminal according to an embodiment of the present invention. As shown in Fig. 4 , when the temperature parameters include TN in addition to TS, step S304 includes a following step.
  • the battery with TN less than or equal to the continuous time threshold is considered as a battery of second type, and a charging or discharging operation is performed using the battery of second type.
  • the above continuous time threshold is a threshold for warning against continuous time of high temperature which is represented by TNH (the warning value may be set flexibly, for example, may be set to 30 minutes, 15 minutes, 5 minutes, etc.).
  • Fig. 5 is a third flowchart of a charge and discharge control method for a terminal according to an example not being part of the present invention. As shown in Fig. 5 , when the temperature parameters include TN, step S204 includes a following step.
  • step S502 when it is determined that the one or more batteries in the terminal include one or more batteries with TN less than or equal to the continuous time threshold, the one or more batteries meeting this condition are considered as one or more batteries of second type, and a charging or discharging operation is performed using the one or more batteries of second type.
  • performing a charging or discharging operation using the battery or batteries of second type includes at least one of the following steps: when it is determined that the battery or batteries of second type include a battery with TS less than or equal to a second cumulative time threshold, the battery with TS less than or equal to the second cumulative time threshold is considered as a battery of third type, and a charging or discharging operation is performed using the battery of third type, where the second cumulative time threshold is less than the first cumulative time threshold; and when it is determined that the battery or batteries of second type do not include a battery with TS less than or equal to the second cumulative time threshold, a charging or discharging operation is performed according to a predetermined charging and discharging strategy.
  • the second cumulative time threshold is a general threshold of cumulative time of high-temperature, that is, a value less than the threshold for warning against cumulative time of high temperature, which is represented by TSL (exceeding the general threshold means that the cumulative time of high-temperature of the battery has reached a certain proportion of the threshold for warning.
  • the value of the general threshold is fixed or flexibly adjusted, and is taken in proportion to the threshold for warning against cumulative time of high temperature, for example, may be 50% of the threshold for warning against cumulative time of high temperature, or may be 30% of the threshold for warning against cumulative time of high temperature).
  • performing a charging or discharging operation using the battery or batteries of third type includes: when the number of the batteries of third type is at least two, a charging or discharging operation is performed using the batteries of third type according to a predetermined charging and discharging strategy.
  • the predetermined charging and discharging strategy is a preset charging and discharging strategy (also called a default charging and discharging strategy, which may be an existing charging and discharging strategy.
  • the preset charging and discharging strategy may be that one battery is fixedly charged or discharged first, and after the battery is fully charged or its power is lower than a preset value, the other battery is charged or discharged.
  • the preset charging and discharging strategy may also be that the two batteries are charged or discharged simultaneously.
  • the method before performing a discharging operation using the battery or batteries of third type, the method also includes: when it is determined that the battery or batteries of second type further include a battery with TS greater than the second cumulative time threshold, and the power of the battery with TS greater than the second cumulative time threshold exceeds a power threshold, the battery with TS greater than the second cumulative time threshold is discharged to a level equal to the power threshold.
  • This embodiment is mainly directed to a case where a discharging operation is performed using a circuit in the terminal.
  • the battery of second type with high power level may be preferentially discharged until the power thereof decreases to the aforementioned power threshold.
  • performing a discharging operation using the battery or batteries of second type includes: when it is determined that the batteries of second type include a battery with TS less than or equal to the second cumulative time threshold and a battery with TS greater than the second cumulative time threshold, and the battery with TS greater than the second cumulative time threshold is in a full power state, a discharging operation is performed according to a predetermined discharging strategy, where the second cumulative time threshold is less than the first cumulative time threshold.
  • the predetermined charging and discharging strategy is also a preset charging and discharging strategy, which is the same as that described in the foregoing embodiment, and will not be repeated here.
  • the method when it is determined that there is a battery with TS less than or equal to the cumulative time threshold in the terminal, the method also includes: when it is determined that the batteries of first type do not include a battery with TN less than or equal to the continuous time threshold, an indication that the batteries in the terminal are in a long-term overheating state is performed.
  • This embodiment is directed to the case where TN of each of the batteries of first type in the terminal is greater than the continuous time threshold, in this case, a user is indicated that the batteries of first type in the current terminal are in a long-term overheating state, and then the user is reminded that the batteries need to be subjected to heat reduction treatment.
  • there are various ways to indicate for example, by generating a specific indicative sound (for example, giving an alarm sound), by voice, or by displaying text.
  • the method after indicating that the batteries in the terminal are in a long-term overheating state, the method also includes: performing charging or discharging restriction on the batteries in the terminal; and when it is determined that the temperature of the batteries after charging or discharging restriction is reduced below a preset temperature, performing a charging or discharging operation using the batteries subjected to charging or discharging restriction.
  • charging or discharging restriction for example, charging may be restricted by reducing a charging current, while discharging of the terminal may be restricted by starting a low power consumption mode (for example, reducing the brightness of screen display).
  • a terminal with two batteries is taken as an example.
  • a structural block diagram of the terminal with two batteries is shown in Fig. 6 .
  • Each module in Fig. 6 will be described below.
  • the two batteries of the terminal include a power supply battery 1 and a power supply battery 2.
  • a TN control module is configured to execute a charge and discharge control strategy according to a stored continuous time of high-temperature TN up to now, including actively switching among batteries after TN exceeds a preset threshold.
  • a TS control module is configured to execute a charge and discharge control strategy according to a stored cumulative time of high-temperature TS, including adjusting a charging temperature threshold in several stages, adjusting a maximum charge power, switching to another battery for power supply after full charge of a battery, and the like.
  • a dual-battery charge and discharge control module is configured to control the charging of two batteries, switch a power supply battery, and the like.
  • FIG. 7 and Fig. 8 are basic block diagrams showing charging of two batteries.
  • Fig. 7 shows a scheme of charging two batteries simultaneously, each of batteries 1 and 2 having a special charging path, while Fig. 8 shows only one charging path, so that only one battery can be charged at one time, and which battery is to be charged is controlled by a charging control unit.
  • Fig. 9 is a flowchart showing power supply of a terminal with two batteries according to an embodiment of the present invention, including following steps.
  • a value of TN1 reaches a preset threshold TN1H and a value of TN2 does not reach a preset threshold TN2H
  • the battery 1 is switched to the battery 2 for power supply (corresponding to 9-11 in Fig. 9 ). If the battery 2 is low in power, the battery 1 is used to supply power and the user is indicated that the battery is overheated, and vice versa, so as to make the two batteries be used uniformly at high temperature as much as possible.
  • TS1 exceeds TSL1 and the value of TS2 does not exceed TSL2, and at this time, if the battery 1 is in a full power state, the battery 1 is discharged to a high power threshold (such as 70% of its capacity) (corresponding to 15, 16, 18-19 in Fig. 9 ). If the battery 1 is low in power, the battery 2 is used to supply power, and vice versa.
  • a high power threshold such as 70% of its capacity
  • Fig. 10 is a flowchart showing charging of a terminal with two batteries according to an embodiment of the present invention, including following steps.
  • the battery 2 is switched to be charged (corresponding to 9-11 in Fig. 10 ). If the battery 2 is fully charged, a battery maximum temperature in a charging scenario of the battery 1 is limited, and vice versa, so as to make the two batteries be used uniformly at high temperature as much as possible.
  • both batteries reach TN1H and TN2H, the user is indicated that the mobile phone is overheated (corresponding to 12 in Fig. 10 ).
  • the battery 2 is charged (corresponding to 15-16 and 18 in Fig. 10 ). If the battery 2 is fully charged, the battery 1 is then charged, and vice versa (corresponding to 15, 19-20 in Fig. 10 ).
  • the foregoing embodiments are directed to the charging or discharging process of a terminal with two batteries.
  • a charging process of a single battery will be described below.
  • Fig. 11 is a flowchart showing charging of a single battery according to an embodiment, including following steps.
  • the maximum battery temperature during charging is limited to a predetermined temperature (for example, 45°C) and the maximum charging power is limited to a high power threshold (for example, 70% of its capacity) (corresponding to 3-4 in Fig. 11 ). Otherwise, the process proceeds to STEP 3.
  • a predetermined temperature for example, 45°C
  • a high power threshold for example, 70% of its capacity
  • the method according to the above embodiments may be implemented by software and a necessary general hardware platform, and of course may also be implemented by hardware alone, but in many cases the former is a better implementation.
  • the technical schemes of the present invention essentially or a portion thereof contributing to the existing technology may be embodied in the form of a software product stored in a non-transitory computer-readable storage medium (e.g., ROM/RAM, magnetic disk, optical disk), including several instructions for causing a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to perform the methods described in the various embodiments of the present invention.
  • a charging and discharging control apparatus for a terminal is also provided, and the apparatus is used to implement the foregoing embodiments and implementations, and details of which are already described and are not repeated here.
  • the term "module” may be a combination of software and/or hardware that implements a predetermined function.
  • the apparatuses described in the embodiments below are implemented in software, an implementation in hardware or a combination of software and hardware is also possible and contemplated.
  • Fig. 12 is a block diagram showing a configuration of a charge and discharge control apparatus for a terminal according to an embodiment of the present invention.
  • the apparatus includes: a determination module 122 configured to determine temperature parameters of one or more batteries in a terminal, where the temperature parameters include a cumulative time TS for which the temperature of the battery is greater than a first preset value, and a continuous time TN for which the temperature of the battery is greater than a second preset value; and a control module 124 configured to perform charge and discharge control on the one or more batteries in the terminal according to the temperature parameters.
  • the control module 124 is configured to perform at least one of the following operations: when it is determined that there is no battery with TS less than or equal to a first cumulative time threshold in the terminal, indicating that the battery in the terminal needs to be replaced; and in response to determining that there is a battery with TS less than or equal to the first cumulative time threshold in the terminal, considering the battery with TS less than or equal to the first cumulative time threshold as a battery of first type, and performing a charging or discharging operation using the battery of first type.
  • the control module 124 is configured to perform charging and discharging operations using the battery of first type by: when it is determined that the battery or batteries of first type include a battery with TN less than or equal to a continuous time threshold, considering the battery with TN less than or equal to the continuous time threshold as a battery of second type, and performing a charging or discharging operation using the battery of second type.
  • the control module 124 when it is determined that one or more batteries in the terminal include one or more batteries with TN less than or equal to the continuous time threshold, the one or more batteries meeting this condition are determined as one or more batteries of second type, and a charging or discharging operation is performed using the one or more batteries of second type.
  • control module 124 is configured to perform charging and discharging operations using the battery or batteries of second type in at least one of the following manners: when it is determined that the battery or batteries of second type include a battery with TS less than or equal to a second cumulative time threshold, the battery with TS less than or equal to the second cumulative time threshold is considered to be a battery of third type, and a charging or discharging operation is performed using the battery of third type, where the second cumulative time threshold is less than the first cumulative time threshold; and when it is determined that the battery or batteries of second type do not include a battery with TS less than or equal to the second cumulative time threshold, a charging or discharging operation is performed according to a predetermined charging and discharging strategy.
  • control module 124 is configured to perform charging and discharging operations using the battery or batteries of third type by: when the number of the batteries of third type is at least two, performing a charging or discharging operation using the batteries of third type according to a predetermined charging and discharging strategy.
  • control module 124 is configured to perform, before performing charging and discharging operations using the battery or batteries of third type: when it is determined that the battery or batteries of second type further include a battery with TS greater than the second cumulative time threshold, and the power of the battery with TS greater than the second cumulative time threshold exceeds a power threshold, discharging the battery with TS greater than the second cumulative time threshold to a level equal to the power threshold.
  • control module 124 is configured to perform charging and discharging operations using the battery or batteries of second type by: when it is determined that the batteries of second type include a battery with TS less than or equal to the second cumulative time threshold and a battery with TS greater than the second cumulative time threshold, and the battery with TS greater than the second cumulative time threshold is in a full power state, performing a discharging operation according to a predetermined discharging strategy, where the second cumulative time threshold is less than the first cumulative time threshold.
  • control module 124 when it is determined that there is a battery with TS less than or equal to the cumulative time threshold in the terminal, the control module 124 is also configured to, when it is determined that the battery or batteries of first type do not include a battery with TN less than or equal to the continuous time threshold, indicate that the batteries in the terminal are in a long-term overheating state.
  • control module 124 is also configured to perform charging or discharging restriction on the batteries in the terminal; and when it is determined that the temperature of the batteries after charging or discharging restriction is reduced below a preset temperature, perform a charging or discharging operation using the batteries subjected to charging or discharging restriction.
  • the above modules may be implemented by software or hardware, and the latter may be implemented in the following manner, but is not limited thereto: the above modules locate in a same processor; alternatively, the above modules are respectively located in different processors, in any combination.
  • An example not being part of the present invention also provides a non-transitory computer-readable storage medium storing a computer program, which, when executed, performs the steps in any of the method embodiments described above.
  • the non-transitory computer-readable storage medium includes, but is not limited to, a USB flash drive, a read-only memory (ROM), a random-access memory (RAM), a removable hard disk, a magnetic disk, an optical disc, or any other medium capable of storing a computer program.
  • An example not being part of the present invention also provides an electronic apparatus including a memory and a processor, where the memory stores a computer program which, when executed by the processor, causes the processor to perform the steps in any of the method embodiments described above.
  • the electronic apparatus also includes a transmission device connected to the processor and an input/output device connected to the processor.
  • One or more embodiments of the present invention are provided to explain an effect of improving battery safety, reducing failure due to swelling, and extending battery life.
  • the charging or discharging of the terminal is controlled according to the temperature parameters of the battery, that is to say, when using the terminal to charge and discharge, the temperature parameters of the battery are considered comprehensively, so that the battery is prevented from being frequently used for charging or discharging at high temperature, thus solving a problem in the existing technology that when the battery in the terminal is used for charging and discharging for a long time, the battery may swell and cause a safety accident. Therefore, the effects of improving battery safety, reducing swelling phenomena, and ensuring the use safety of the terminal are effectively achieved.
  • modules or steps of the present invention described above may be implemented by a general-purpose computing device, which may be centralized on a single computing device, or distributed over a network of multiple computing devices, and optionally may be implemented by program code executable by the computing device, so that they may be stored in a storage device and executed by the computing device, and in some cases may be implemented by performing the steps shown or described in a sequence different from that herein, or may be separately fabricated into individual integrated circuit modules, or some of them in part may be fabricated into individual integrated circuit modules.
  • the invention is not limited to any particular combination of hardware and software.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Claims (11)

  1. Lade- und Entladesteuerverfahren für ein Endgerät, umfassend:
    Bestimmen von Temperaturparametern von mindestens einer Batterie in dem Endgerät, wobei die Temperaturparameter eine kumulative Zeit TS, für die die Temperatur der mindestens einen Batterie größer als ein erster voreingestellter Wert ist, und eine kontinuierliche Zeit TN, während der die Temperatur der mindestens einen Batterie größer als ein zweiter voreingestellter Wert gehalten wird, umfassen (S202); und
    Ausführen einer Lade- und Entladesteuerung an der mindestens einen Batterie in dem Endgerät gemäß den Temperaturparametern (S204),
    dadurch gekennzeichnet, dass ein Ausführen der Lade- und Entladesteuerung an der mindestens einen Batterie in dem Endgerät gemäß den Temperaturparametern (S204) folgende Vorgänge umfasst,
    als Reaktion auf ein Bestimmen, dass eine jeweilige der mindestens einen Batterie eine TS kleiner als oder gleich wie der erste kumulative Zeitschwellenwert in dem Endgerät aufweist, Betrachten der jeweiligen der mindestens einen Batterie als eine Batterie vom ersten Typs und Ausführen eines Lade- oder Entladevorgangs unter Verwendung der Batterie vom ersten Typ (S304);
    wobei ein Ausführen eines Lade- oder Entladevorgangs unter Verwendung der Batterie vom ersten Typ Folgendes umfasst,
    als Reaktion auf ein Bestimmen, dass eine jeweilige Batterie vom ersten Typ eine TN kleiner als oder gleich wie ein kontinuierlicher Zeitschwellenwert aufweist, Betrachten der jeweiligen Batterie vom ersten Typ als eine Batterie vom zweiten Typ und Ausführen eines Lade- oder Entladevorgangs unter Verwendung der Batterie vom zweiten Typ (S402).
  2. Verfahren nach Anspruch 1, wobei ein Ausführen einer Lade- und Entladesteuerung für die mindestens eine Batterie in dem Endgerät gemäß den Temperaturparametern (S204) ferner das Folgende umfasst:
    als Reaktion auf ein Bestimmen, dass keine von der mindestens einen Batterie eine TS von weniger als oder gleich wie ein erster kumulativer Zeitschwellenwert in dem Endgerät aufweist, Angeben, dass die mindestens eine Batterie in dem Endgerät ersetzt werden muss (S302).
  3. Verfahren nach Anspruch 1, wobei ein Ausführen einer Lade- und Entladesteuerung für die mindestens eine Batterie in dem Endgerät gemäß den Temperaturparametern (S204) ferner Folgendes umfasst:
    als Reaktion auf ein Bestimmen, dass eine jeweilige der mindestens einen Batterie eine TN kleiner als oder gleich wie der kontinuierliche Zeitschwellenwert ist, Betrachten der jeweiligen der mindestens einen Batterie als eine Batterie vom zweiten Typ und Ausführen eines Lade- oder Entladevorgangs unter Verwendung der Batterie vom zweiten Typ (S502).
  4. Verfahren nach Anspruch 1 oder 3, wobei ein Ausführen eines Lade- oder Entladevorgangs unter Verwendung der Batterie vom zweiten Typ Folgendes umfasst:
    als Reaktion auf ein Bestimmen, dass eine jeweilige Batterie vom zweiten Typ eine TS von weniger als oder gleich wie ein zweiter kumulativer Zeitschwellenwert aufweist, Betrachten der jeweiligen Batterie vom zweiten Typ als eine Batterie vom dritten Typ und Ausführen eines Lade- oder Entladevorgang unter Verwendung der Batterie vom dritten Typ; und
    als Reaktion auf ein Bestimmen eines Nichtvorhandenseins einer Batterie vom zweiten Typ mit einer TS kleiner als oder gleich wie der zweite kumulative Zeitschwellenwert, Ausführen eines Lade- oder Entladevorgangs gemäß einer ersten vorbestimmten Lade- und Entladestrategie.
  5. Verfahren nach Anspruch 4, wobei ein Ausführen eines Lade- oder Entladevorgangs unter Verwendung der Batterie vom dritten Typ Folgendes umfasst:
    als Reaktion auf ein Vorhandensein von mindestens zwei Batterien vom dritten Typ, Ausführen eines Lade- oder Entladevorgangs unter Verwendung der Batterien vom dritten Typ gemäß einer zweiten vorbestimmten Lade- und Entladestrategie; wobei die zweite vorbestimmte Lade- und Entladestrategie mindestens umfasst, dass eine erste Batterie der Batterien vom dritten Typ zuerst fest aufgeladen oder zuerst entladen wird, und nachdem die erste Batterie der Batterien vom dritten Typ vollständig aufgeladen ist oder die Leistung der ersten Batterie der Batterien vom dritten Typ niedriger ist als ein voreingestellter Wert, eine zweite Batterie der Batterien vom dritten Typ aufgeladen oder entladen wird, oder sowohl die erste als auch die zweite Batterie der Batterien vom dritten Typ gleichzeitig aufgeladen oder entladen werden.
  6. Verfahren nach Anspruch 4, wobei das Verfahren vor einem Ausführen eines Lade- oder Entladevorgangs unter Verwendung der Batterie vom dritten Typ ferner Folgendes umfasst:
    als Reaktion auf ein Bestimmen, dass eine jeweilige Batterie vom zweiten Typ eine TS größer als der zweite kumulative Zeitschwellenwert aufweist, und dass die Leistung der jeweiligen Batterie vom zweiten Typ mit einer TS größer als der zweite kumulative Zeitschwellenwert einen Leistungsschwellenwert überschreitet, Entladen der jeweiligen Batterie vom zweiten Typ auf den Leistungsschwellenwert.
  7. Verfahren nach Anspruch 1 oder 3, wobei die Batterie vom zweiten Typ eine von mehreren Batterien vom zweiten Typ ist, umfassend eine erste Batterie vom zweiten Typ und eine zweite Batterie vom zweiten Typ, und ein Ausführen eines Entladevorgangs unter Verwendung der Batterie vom zweiten Typ Folgendes umfasst:
    als Reaktion auf ein Bestimmen, dass eine erste Batterie vom zweiten Typ eine TS aufweist, die kleiner als oder gleich wie der zweite kumulative Zeitschwellenwert ist, dass eine zweite Batterie vom zweiten Typ eine TS aufweist, die größer als der zweite kumulative Zeitschwellenwert ist, und dass die zweite Batterie vom zweiten Typ vollständig geladen ist, Ausführen eines Entladevorgangs gemäß einer dritten vorbestimmten Entladestrategie;
    wobei die dritte vorbestimmte Lade- und Entladestrategie mindestens umfasst, dass die erste Batterie vom zweiten Typ zuerst fest aufgeladen oder entladen wird, und nachdem die erste Batterie vom zweiten Typ vollständig aufgeladen ist oder die Leistung der ersten Batterie vom zweiten Typ niedriger ist als ein voreingestellter Wert, die zweite Batterie vom zweiten Typ aufgeladen oder entladen wird, oder sowohl die erste als auch die zweite Batterie vom zweiten Typ gleichzeitig aufgeladen oder entladen werden.
  8. Verfahren nach Anspruch 1, wobei das Verfahren als Reaktion auf ein Bestimmen, dass eine jeweilige der mindestens einen Batterie eine TS kleiner als oder gleich wie der kumulative Zeitschwellenwert in dem Endgerät aufweist, ferner Folgendes umfasst:
    als Reaktion auf ein Bestimmen eines Nichtvorhandenseins einer Batterie vom ersten Typ mit einer TN kleiner als oder gleich wie der kontinuierliche Zeitschwellenwert, Angeben, dass die mindestens eine Batterie in dem Endgerät in einem Langzeit-Überhitzungszustand ist.
  9. Verfahren nach Anspruch 8, wobei das Verfahren nach Angeben, dass die mindestens eine Batterie in dem Endgerät in einem Langzeit-Überhitzungszustand ist, ferner Folgendes umfasst:
    Ausführen einer Lade- oder Entladebeschränkung an der mindestens eine Batterie in dem Endgerät; und
    als Reaktion auf ein Bestimmen, dass die Temperatur der mindestens einen Batterie nach der Lade- oder Entladebeschränkung unter eine vorbestimmte Temperatur gesunken ist, Ausführen eines Lade- oder Entladevorgangs unter Verwendung der mindestens einen Batterie, die der Lade- oder Entladebeschränkung unterliegt.
  10. Lade- und Entladesteuervorrichtung für ein Endgerät, umfassend:
    ein Bestimmungsmodul, das konfiguriert ist, um Temperaturparameter von mindestens einer Batterie in dem Endgerät zu bestimmen, wobei die Temperaturparameter eine kumulative Zeit TS, für die die Temperatur der mindestens einen Batterie größer als ein erster voreingestellter Wert ist, und eine kontinuierliche Zeit TN, während der die Temperatur der mindestens einen Batterie größer als ein zweiter voreingestellter Wert gehalten wird, umfassen (122); und
    ein Steuermodul, das konfiguriert ist, um eine Lade- und Entladesteuerung an der mindestens einen Batterie in dem Endgerät gemäß den Temperaturparametern auszuführen (124),
    dadurch gekennzeichnet, dass ein Ausführen der Lade- und Entladesteuerung an der mindestens einen Batterie in dem Endgerät gemäß den Temperaturparametern (124) folgende Vorgänge umfasst,
    als Reaktion auf ein Bestimmen, dass eine jeweilige der mindestens einen Batterie eine TS kleiner als oder gleich wie der erste kumulative Zeitschwellenwert in dem Endgerät aufweist, Betrachten der jeweiligen der mindestens einen Batterie als eine Batterie vom ersten Typs und Ausführen eines Lade- oder Entladevorgangs unter Verwendung der Batterie vom ersten Typ (S304);
    wobei ein Ausführen eines Lade- oder Entladevorgangs unter Verwendung der Batterie vom ersten Typ Folgendes umfasst,
    als Reaktion auf ein Bestimmen, dass eine jeweilige Batterie vom ersten Typ eine TN kleiner als oder gleich wie ein kontinuierlicher Zeitschwellenwert aufweist, Betrachten der jeweiligen Batterie vom ersten Typ als eine Batterie vom zweiten Typ und Ausführen eines Lade- oder Entladevorgangs unter Verwendung der Batterie vom zweiten Typ (S402).
  11. Vorrichtung nach Anspruch 10, wobei das Steuermodul ferner konfiguriert ist, um folgenden Vorgang auszuführen:
    als Reaktion auf ein Bestimmen, dass keine von der mindestens einen Batterie eine TS von weniger als oder gleich wie ein erster kumulativer Zeitschwellenwert in dem Endgerät aufweist, Angeben, dass die mindestens eine Batterie in dem Endgerät ersetzt werden muss.
EP19878074.4A 2018-10-30 2019-10-29 Lade- und entladesteuerungsverfahren und vorrichtung für endgeräte Active EP3876381B1 (de)

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US8854012B2 (en) * 2011-08-25 2014-10-07 Apple Inc. Management of high-voltage lithium-polymer batteries in portable electronic devices
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JP6413311B2 (ja) * 2014-04-11 2018-10-31 株式会社村田製作所 蓄電装置、制御方法、制御装置、蓄電システム、電動車両および電子機器
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